<template>
  <div>
    <button @click="isShow = !isShow">显示/隐藏</button>
    <transition-group name="hello" appear>
      <h1 v-show="!isShow"  key="1">你好啊！！！</h1>
      <h1 v-show="isShow"  key="2">dl！</h1>
    </transition-group>
  </div>
</template>

<script>
  export default {
    name: "Test",
    data(){
      return{
        isShow:true
      }
    }
  }
</script>

<style scoped>
  h1{
    background-color:forestgreen;
  }

  /* 进入的起点，离开的终点 */
  .hello-enter,.hello-leave-to{
    transform: translateX(-100%);
  }

  .hello-enter-active,.hello-leave-active{
    transition:0.5s linear;
  }
  /* 进入的终点，离开的起点 */
  .hello-enter-to,.hello-leave{
    transform: translateX(0);
  }




</style>